One of the loudest valves in the GFB range can now also be one of the quietest - choose between silent and stealthy operation, or an ear splitting WHOOSH!
The Mach 1 and Plumback valves have now been combined into one affordable unit - the new Mach 1 kit comes complete with the parts required to make this valve vent to atmosphere for maximum noise, or plumb back for silent - and very importantly - LEGAL - operation.
Like the Stealth FX and Deceptor Pro, the Mach 1 is now also available in a black anodised finish for those who prefer keep things a little more clandestine.
The Mach 1 comes standard with a 35mm base (part # 5035), which can be hose-mounted into 32-35mm I.D. hose, or pipe mounted onto 1" metal pipe. A short length of 1" steel pipe is included in the kit for custom weld-on applications. The supplied plumb back outlet is 30mm (part # 5230).
A range of different sized hose adaptors and model-specific bolt-on adaptors are available if required.
Colors available: Black only.
How to convert your Mach 1 into a Plumback
1. Unscrew the trumpet
2. Screw in the supplied plumb-back adaptor
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Installation instructions
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Hear a GFB valve in action
